Home / 1,992,912.30-2,989,368.45-553,592.93

Finding the Fourth Proportional to 1,992,912.30, 2,989,368.45 and 553,592.93

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Solution

The fourth proportional to 1,992,912.30, 2,989,368.45 and 553,592.93 is: 830,389.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,912.30 : 2,989,368.45 = 553,592.93 : x
  2. Step 2: Convert to fraction form
    1,992,912.30/2,989,368.45 = 553,592.93/x
  3. Step 3: Cross multiply
    1,992,912.30x = 2,989,368.45 × 553,592.93
  4. Step 4: Simplify right side
    1,992,912.30x = 1,654,893,224,138.22
  5. Step 5: Solve for x
    x = 1,654,893,224,138.22/1,992,912.30
  6. Step 6: Final answer
    x = 830,389.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.